Loom.



PATENTED SEPT. 1, 1903.

G. A. HERALD.

' LOOM.

APPLICATION FILED JAN. 21,1903.

2 SHEETS- 8111513 2.

N0 MODEL.

Ill/Il 7/47!) M 7 III/A lll l 77 L Z7zamem lw/e'n or.

6? Q4 0% ii'z arneyi.

UNITED STATES Patented September 1, 1903.

onARLEs A. HERALD, on HAMILTON, oANADA.

LooMQ SPECIFICATION forming part of Letters Patent No. 737,837, datedSeptember 1, 1903. Application filed January 21, 1903- Serial No.139,973. (No model.)

To aZZ whom, it may concern:

Be it known that 1, CHARLES A. HERALD, a subject of the King of GreatBritain, and a resident of Hamilton, in the Province of Ontario,Dominion of Canada, have invented new and useful Improvements in Looms,of which the following is a specification.

This invention relates to a loom for weaving wire or fibrdus material.

In looms as most commonly constructed the let-off beam and thecrank-shaft for driving the slay or beater are arranged one in front ofthe other. This arrangement is objectionable in several respects, amongwhich may be mentioned the following: The length of the loom isunnecessarily increased and more floor-space for the same is required,the exposed parts of the operating mechanism are multiplied and accessto the working parts of the loom is rendered difficult, and in a loom ofgiven dimensions asmaller beam must be employed and the length of thematerial produced decreased.

The object of the present invention is to provide a loom of simple,compact, and desirable construction in which the above objections areavoided.

In the accompanying drawings, consisting of two sheets, Figure 1 is aplan View of so much of a loom embodying the invention as is necessaryto an understanding of the same. Fig. 2 is a side elevation thereof. Fig3 is a detail section showing the manner of journaling the beam andcrank-shaft. Fig. 4. is a similar detail section showing aslightly-different manner of mounting said parts. Figs. 5 and b arerespectively an elevation and a plan View showing different operatingmechanisms for the beater.

Like letters of reference referto like parts in the several figures.

A represents the main or supporting frame of the loom; B, the let-offbeam or drum; 0, the breast-roller, over which the woven fabric passes;D, the take-up roller for the woven fabric; E, the heddle-frames orharness provided with heddles; F, the beater or slay, and G the maindrive-shaftof the loom. These parts may be of any Well-known or suitableconstruction and arrangement and are merely shown in a conventional wayin the drawings to better enable an understanding of the invention.

The let-0E beam and operating crank-shaft for the beater instead ofbeing arranged one in front of the other, asusual, are arrangedconcentrically.

Referring particularly to the construction shown in Figs. 1, 2, and 3,the let-off beam B is provided at its opposite ends with hollow journalsH, which are supported and rotate in bearings h of any suitable form onthe sides of the main frame. I represents the crank-shaft for operatingthe heater or slay. The crank-shaft is arranged concentrically withinthe beam and projects loosely through the hollow beam-journals H, whichthus constitute bearings for the crank-shaft. The beam is alsopreferably provided with a central hub or bearing h, through which thecrank-shaft passes loosely. The crank-shaft is driven from thedrive-shaft G by pinionsj on the drive-shaft which mesh withgearwheelsj, secured to the projecting ends of the crank-shaft. Anyother usual drive mechanism between the drive-shaft and crank-shaft maybe employed. The beater or slay F is connected to and operated from thecrankshaft by pitmen K, arranged outside of the loom-frame and connectedto crank-pins k on the-gear-wheelsj, secured to the crank-shaft. Theleft-off beam is slowly rotated independently of the crank-shaft bydrive mechanism of the usual type and which is as follows: M representsa worm-wheel secured to or formed on one end of the beam and meshingwith a worm m on a shaft m, which is driven by intermeshing bevel-gearwheels at a, secured, respectively, to the worm-shaft and a ratchetshaftN. The latter is provided with a ratchet-wheel P, which is rotatedintermittently by a pawl p, pivoted on a pawl-lever p, pivoted on theratchet-shaft and connected by a link q to an oscillating arm Q, pivotedon the main frame and connected by a link q to the. reciprocating beateror slay. The link q is adj ustably connected to the oscillating arm toregulate the throw of the said lever and speed of the beam. This drivemechanism, which is well known, may be replaced by any other suitabledrive mechanism.

In the construction shown in Fig. 4. the crank-shaft I is arrangedconcentrically of the beam, as before described, but is journaled at itsends directly in bearings t" on the loomframe, and the beam instead ofbeing supported by journals in bearings on the frame is mounted directlyon the crank-shaft to rotate independently thereof. The beam, it will beunderstood, may be provided with circumferential ribs, as shown in Fig.3, or it may have a plain surface, as shown in Fig. 4.

In some looms it is desirable to operate thev cess to the working partsof the loom when necessary for any cause, a larger beam can be employedin a loom of given dimensions, thus increasing the possible length ofmaterial made by the loom, and the crank-shaft and beam mutuallystrengthen or stiffen each other, so as to cause them to operate moresteadily, which results in the production of a better quality ofmaterial.

I claim as my invention 1. In a loom, the combination of a rotatablelet-ofi beam, harness, a beater, an operatingshaft for said beaterjournaled concentrically of said let-0E beam and connected to saidbeater, and mechanism for independently rotating said let-ofi beam andbeater-shaft, substantially as set forth. 7

2. In a loom, the combination of a rotatable let-off beam, harness, areciprocating beater, an operating crank-shaft for said heater journaledconcentrically of said beam, a pitman connecting said crank-shaft andbeater, and drive mechanism for indepcndently'rotating said let-off beamand crank-shaft, substantially as set forth.

3. In a loom, the combination of a rotatable let-off beam provided withhollow supportingjournals, harness, a beater, a rotatableoperating-shaft for said beater passing through said hollow journals andconnected to said beater, and means'for independently rotating saidlet-off beam and beater-shaft, substantially as set forth.

4. In a loom, the combination of a frame, a rotatable let-off beamhaving hollow journals supported in bearings on said frame, harness, abeater, an operating-shaft for said beater arranged concentrically ofsaid beam and journaled to rotate in said hollow journals, operativeconnections between said beatershaft and said beater, and means forindependently rotating said let-off beam and shaft, substantially as setforth.

5. In a loom, the combination of a rotatable let-off beam, harness, abeater, a rotary shaft journaled concentrically of said let-off beam andconnected to said beater to operate the latter, and drive mechanism forsaid let-off beam operated by said beater, substantially as set forth.

Witness my hand this 8th day of January, 1903.

CHARLES A. HERALD.

Witnesses:

MINA THOMPSON, W. O. HERALD.

